What is the minimum amount of materials needed to meet your performance requirements? How much will the dimensions of a part change when loaded for a specified time at a given temperature? Engineers and designers will find the answers to these important questions in The Effect of Creep and Other Time Related Factors on Plastics. This is the only single reference that shows the effect of creep and time. A databank of material constants used in engineering design equations substituting time/temperature dependent apparent modulus for elastic modulus in standard engineering equations will allow prediction of the effects of creep and stress relaxation.