strain-hardening modulus

Based on the established relationship between the atomic potential and the macroscopic continuum strain energy density, analytical expressions for the tangent modulus tensors are derived.

利用原子间相互作用势以及能量等效原理，得到了基于广义连续介质模型的单壁碳纳米管的本构关系。

Result shows that tensile stress-strain curve is not linear, most of them consist of 3 zigzags corresponding to different modulus.

结果表明，拉伸应力应变曲线是非线性的，大部分拉伸曲线基本由三段折线组成，对应着三段模量。

The shear modulus of soil is a random and the stress-strain relationship of soil is linear.

在本算例中,桩所在的土体的剪切模量为一随机场,土的应力应变关系为线性.

The young's modulus, strength and breaking strain of carbon materials

炭素材料的弹性模量、强度和破坏变形率

Results showed that with the increase of flame retardant additives, the breaking strain, tensile strength and elongation at break declined, but the elasticity modulus increased.

结果显示：随阻燃剂添加量增加，体系的扯断应变、拉伸强度、断裂伸长率下降，弹性模量增大。