A preferred polyethylene or copolymer film has a shrinkage in the longitudinal and transverse directions of 2 to 4% when heated for five minutes at 120 C., a tensile strength at break in excess of 25,000 p.s.i., and an elastic modulus (1% secant) greater than 3 x 105 p.s.i. ...
The polymer used to form microporous coating A may have a secant tensile modulus at 5% elongation of above 600 pounds per square inch during the entire processing cycle from the time the polymer is coagulated into a microporous structure until it is dried and may be a polyurethane prepared ...
The secant shear modulus of lightweight sand-EPS beads soil(LSES) under dynamic loads will degrade with increasing strain. 动荷载下砂土与EPS颗粒混合的轻质土(LSES)的割线剪切模量Gsec随着剪应变的累积会发生衰减,基于不同水泥掺量和EPS含量的LSES试样的动三轴试验结果,建立了与围压、剪应变、水泥掺量等...
切线模量（tangent modulus），材料应力-应变曲线上某点切线倾角的正切。弹性阶段的切线模量即弹性模量。钢材和木材应力-应变曲线的弹塑性阶段，混凝土应力-应变曲线的应力上升段，都是应力愈高，切线模量愈低。钢材的切线模量用于研究钢材在弹塑性阶段的工作性能。割线模量（secant modulus），材料的非线性应力-应变关系...