DOI: 10.57760/sciencedb.j00140.00052
title: Data set for the dynamic response of a conical projectile subjected to impact loading at its nose
title: 头部受冲击的锥形弹体结构动力响应数据集

description: linear density data group: Firstly, based on the simplified structure of the free-free beam with variable cross-section of the conical projectile, as well as equations (3) to (4) in the paper, the actual dimensionless linear density (linear density) at any position (x/D0, with a coordinate spacing of 0.1 after dimensionality) in the axis direction of the projectile under two tapes of θ=3º and 5º was calculated. Then, the linear regression equation and the parameters R2 were obtained through linear fitting. Based on them, the fitting linear density (linear fitting) of the projectile at any position under the two tapes was obtained.Structural internal force distribution model data group: Based on the relevant parameters, the fitted linear density variation coefficient k of the projectile at each taper was obtained through linear fitting. Combined with equations (12.2), (13.2), and (15) in the paper, the dimensionless bending moment and axial force distribution at any position (x/L, with a dimensionless coordinate spacing of 0.02) on the axis direction of the projectile at different tapers were calculated. Among them, for the projectile with θ=4.5º, the errors (-error and +error) caused by the linear fitting of its linear density were given.Failure model data group: Based on the relevant parameters and the equations (12.2), (13.2), (17.1), (18), and (19) in the paper, the distribution of the yield function in the axial direction of the projectile under different axial load indices (x/L, with a dimensionless coordinate spacing of 0.001) was calculated. Then, under different axial load conditions, let the yield function be zero to obtain the ultimate transverse load index at each position of the projectile. The minimum value and its position among them are the ultimate transverse load index and the dangerous position (yield position) of the projectile under this axial load condition.The time-history data group of internal forces at position 0.34L of T2 projectile: Through the numerical simulation of the T2 projectile model, the original data of the bending moment and axial force of the shell at position 0.34L of the projectile varying with time t under different load rise times tr were obtained. Among them, the time interval is 25μs. The original data were processed dimensionless with an impact load of 100kN and a projectile length of 343mm to obtain the internal force of the projectile after dimensionless processing.Data group of internal force distribution of T2 projectiles at various instants: Through numerical simulation of the T2 projectile model, the original data of the bending moment and axial force distribution along the axis direction of its shell at various instants were obtained. Among them, the cross-sectional coordinate interval is 0.01L. The original data were processed dimensionless with an impact load of 100kN and a projectile length of 343mm to obtain the force distribution within the projectile after dimensionless processing.T2 projectile structure and shell bending moment distribution data group: Through the numerical simulation of the T2 projectile model, the original data of the bending moment distribution along the axial direction of the projectile and shell at 600μs under the condition of tr=500μs were obtained respectively. Among them, the cross-sectional coordinate interval is 0.01L. The original data were processed dimensionless with an impact load of 100kN and a projectile length of 343mm to obtain the bending moment distribution after dimensionless processing.Comparison data group of the internal force distribution of the two projectile models: Through the linear fitting of the linear density in the theoretical model, the fitted linear density variation coefficients k of the two projectile models were obtained. Combined with equations (12.2), (13.2), and (17.1) in the paper, the dimensionless bending moments and axial force distributions at any position (x/L, with a dimensionless coordinate spacing of 0.01) in the axial direction of the two projectile models were calculated respectively. Through the numerical simulation of the two projectile models, the original data of the bending moment and axial force distribution along the axis direction of the shell at 600μs under the condition of tr=500μs were obtained respectively. Among them, the cross-sectional coordinate interval is 0.01L. The original data were processed dimensionless with an impact load of 100kN and a projectile length of 343mm to obtain the internal force distribution after dimensionless processing.Data group of internal force transfer coefficients under different CRH: According to the relevant parameters, the nose mass m0 of the projectile under different CRH conditions was first calculated from equations (20) to (22) in the paper to obtain the nose mass coefficient μ. Then, the two internal force transfer coefficients C and kN were calculated according to equations (12.2) and (23).Data group of yield conditions of the projectile under different taper: According to the relevant parameters, the variation coefficient k of the fitted linear density of the projectile at each taper was obtained through linear fitting. The nose mass coefficient μ under different taper conditions was calculated, and the bending moment transfer coefficient C was calculated by Equation (12.2). Then, through the dimensionless internal force of each taper projectile and the calculation of the yield function formula (19), the yield functions ψp of each position (x/L, with a dimensionless coordinate spacing of 0.01) of different taper projectiles under the same external load conditions were obtained.Data group of yield conditions of projectiles under different length-to-diameter ratios: According to the relevant parameters, the nose mass coefficient μ under different length-to-diameter ratios was calculated in (6) of the paper. The yield function ψp of projectiles with different length-to-diameter ratios under the same external load was calculated through the dimensionless internal force and yield function distribution (x/L, with a dimensionless coordinate spacing of 0.01) of projectiles with different length-to-diameter ratios. Then, under different axial load conditions, let the yield function be zero to obtain the ultimate transverse load at each position of the projectile (the ultimate transverse load are dimensionless processed with the head diameter D0 and the ultimate plastic bending moment MP0 of the shell head section). The minimum value among them is the ultimate transverse load of the projectile under this axial load and the length-to-diameter ratio.Data group of the yield conditions of the projectile under different diameter-to-thickness ratios: According to the relevant parameters, the fitted linear density parameters ρ0 and k of the projectile with each diameter-to-thickness ratio were obtained through linear fitting. Combined with Equation (13.2) and Equation (17.1) in the paper, the dimensionless bending moment and axial force distribution of the projectile (x/L, the coordinate spacing after dimensionless is 0.01) were calculated respectively. Then, through the dimensionless internal forces of the projectians with various diameter-to-thickness ratios and the calculation of the yield function formula (19), the yield functions ψp of the projectiles with different diameter-to-thickness ratios at each position (x/L, with a dimensionless coordinate spacing of 0.01) under the same external load conditions were obtained.
description: linear density data group: Firstly, based on the simplified structure of the free-free beam with variable cross-section of the conical projectile, as well as equations (3) to (4) in the paper, the actual dimensionless linear density (linear density) at any position (x/D0, with a coordinate spacing of 0.1 after dimensionality) in the axis direction of the projectile under two tapes of θ=3º and 5º was calculated. Then, the linear regression equation and the parameters R2 were obtained through linear fitting. Based on them, the fitting linear density (linear fitting) of the projectile at any position under the two tapes was obtained.Structural internal force distribution model data group: Based on the relevant parameters, the fitted linear density variation coefficient k of the projectile at each taper was obtained through linear fitting. Combined with equations (12.2), (13.2), and (15) in the paper, the dimensionless bending moment and axial force distribution at any position (x/L, with a dimensionless coordinate spacing of 0.02) on the axis direction of the projectile at different tapers were calculated. Among them, for the projectile with θ=4.5º, the errors (-error and +error) caused by the linear fitting of its linear density were given.Failure model data group: Based on the relevant parameters and the equations (12.2), (13.2), (17.1), (18), and (19) in the paper, the distribution of the yield function in the axial direction of the projectile under different axial load indices (x/L, with a dimensionless coordinate spacing of 0.001) was calculated. Then, under different axial load conditions, let the yield function be zero to obtain the ultimate transverse load index at each position of the projectile. The minimum value and its position among them are the ultimate transverse load index and the dangerous position (yield position) of the projectile under this axial load condition.The time-history data group of internal forces at position 0.34L of T2 projectile: Through the numerical simulation of the T2 projectile model, the original data of the bending moment and axial force of the shell at position 0.34L of the projectile varying with time t under different load rise times tr were obtained. Among them, the time interval is 25μs. The original data were processed dimensionless with an impact load of 100kN and a projectile length of 343mm to obtain the internal force of the projectile after dimensionless processing.Data group of internal force distribution of T2 projectiles at various instants: Through numerical simulation of the T2 projectile model, the original data of the bending moment and axial force distribution along the axis direction of its shell at various instants were obtained. Among them, the cross-sectional coordinate interval is 0.01L. The original data were processed dimensionless with an impact load of 100kN and a projectile length of 343mm to obtain the force distribution within the projectile after dimensionless processing.T2 projectile structure and shell bending moment distribution data group: Through the numerical simulation of the T2 projectile model, the original data of the bending moment distribution along the axial direction of the projectile and shell at 600μs under the condition of tr=500μs were obtained respectively. Among them, the cross-sectional coordinate interval is 0.01L. The original data were processed dimensionless with an impact load of 100kN and a projectile length of 343mm to obtain the bending moment distribution after dimensionless processing.Comparison data group of the internal force distribution of the two projectile models: Through the linear fitting of the linear density in the theoretical model, the fitted linear density variation coefficients k of the two projectile models were obtained. Combined with equations (12.2), (13.2), and (17.1) in the paper, the dimensionless bending moments and axial force distributions at any position (x/L, with a dimensionless coordinate spacing of 0.01) in the axial direction of the two projectile models were calculated respectively. Through the numerical simulation of the two projectile models, the original data of the bending moment and axial force distribution along the axis direction of the shell at 600μs under the condition of tr=500μs were obtained respectively. Among them, the cross-sectional coordinate interval is 0.01L. The original data were processed dimensionless with an impact load of 100kN and a projectile length of 343mm to obtain the internal force distribution after dimensionless processing.Data group of internal force transfer coefficients under different CRH: According to the relevant parameters, the nose mass m0 of the projectile under different CRH conditions was first calculated from equations (20) to (22) in the paper to obtain the nose mass coefficient μ. Then, the two internal force transfer coefficients C and kN were calculated according to equations (12.2) and (23).Data group of yield conditions of the projectile under different taper: According to the relevant parameters, the variation coefficient k of the fitted linear density of the projectile at each taper was obtained through linear fitting. The nose mass coefficient μ under different taper conditions was calculated, and the bending moment transfer coefficient C was calculated by Equation (12.2). Then, through the dimensionless internal force of each taper projectile and the calculation of the yield function formula (19), the yield functions ψp of each position (x/L, with a dimensionless coordinate spacing of 0.01) of different taper projectiles under the same external load conditions were obtained.Data group of yield conditions of projectiles under different length-to-diameter ratios: According to the relevant parameters, the nose mass coefficient μ under different length-to-diameter ratios was calculated in (6) of the paper. The yield function ψp of projectiles with different length-to-diameter ratios under the same external load was calculated through the dimensionless internal force and yield function distribution (x/L, with a dimensionless coordinate spacing of 0.01) of projectiles with different length-to-diameter ratios. Then, under different axial load conditions, let the yield function be zero to obtain the ultimate transverse load at each position of the projectile (the ultimate transverse load are dimensionless processed with the head diameter D0 and the ultimate plastic bending moment MP0 of the shell head section). The minimum value among them is the ultimate transverse load of the projectile under this axial load and the length-to-diameter ratio.Data group of the yield conditions of the projectile under different diameter-to-thickness ratios: According to the relevant parameters, the fitted linear density parameters ρ0 and k of the projectile with each diameter-to-thickness ratio were obtained through linear fitting. Combined with Equation (13.2) and Equation (17.1) in the paper, the dimensionless bending moment and axial force distribution of the projectile (x/L, the coordinate spacing after dimensionless is 0.01) were calculated respectively. Then, through the dimensionless internal forces of the projectians with various diameter-to-thickness ratios and the calculation of the yield function formula (19), the yield functions ψp of the projectiles with different diameter-to-thickness ratios at each position (x/L, with a dimensionless coordinate spacing of 0.01) under the same external load conditions were obtained.