This produces a reinforced concrete beam which is able to withstand greater loads without deflection as compared to unreinforced beams of similar dimensions. Compare to posttension. Shear Stress placed transversely on a member in opposite directions. Strain The deformation of an object caused by a force acting upon it. Compressive strain is the shortening of an object in compression.
Tensile strain is the enlongation of an object in tension.
Shearing strain is a lateral deformation caused by a force which tends to move part of an object more than another. Compare to stress. The resistance of an object to external force. Compressive stress develops as an object in compression resists being shortened. Tensile stress develops as an object in tension resists being enlongated.