Patent Document ID: 20110144924
Application ID: 12965876
Patent Flag: 0

Claim One:
1. A method of computing at least one of a Load Factor, a Life Factor and a Load Enhancement Factor using Modified Joint Weibull Analysis, comprising the steps of: retrieving a test data set from at least one database; analyzing the retrieved test data of the test data set for fit with a Weibull distribution model for the test data; analyzing the retrieved test data to determine if at least two coupons have been tested and if both the applied loads and duration of testing at the component-level were varied; computing at least one shape parameter for the Weibull distribution model and storing the at least one shape parameter; computing at least one scale parameter for the Weibull distribution model of the test data and storing the at least one scale parameter; computing a stress to life cycle relationship accounting for scatter in the test data through the Weibull distribution model of the test data; and computing the at least one of a Life Factor, a Load Factor and a Load Enhancement Factor as a function of the computed stress to life cycle relationship, thereby accounting for scatter in the at least one Life Factor, a Load Factor and a Load Enhancement Factor.