定义 在动负荷作用下物体应力与应变的比值。一般用动态电阻应变仪与声学仪器测定。用声学方法(超声脉冲法、共振法等)测定时,一般是在很小的应力和交变动负荷下进行的,其测试结果高于用静力学方法(千分表、静态电阻应变仪等)测得的结果。即在应力-应变曲线上相当于应力接近于零时的弹性模量。因此,用声学仪器测定的动弹性模量又可称为“初期切线模量”(initial tangent modulus),即通过应力——应变曲线起始点所作切线的斜率。
气动弹性模量 [力] modulus of aeroelasticity
相对动弹性模量 relative dynamic elastic modulus
动静弹性模量 dynamic and static elasticity modulus
动力弹性模量 dynamic modulus of elasticity ; dynamic elastic modulus ; dynamic elasticity modulus
动弹性模量损失 loss of dynamic elastic modulus
动态弹性模量 [力] dynamic modulus of elasticity ; dynamic elastic modulus
岩石动态弹性模量 dynamic elastic modulus of rock
动[力]弹性模量 dynamic modulus of elasticity Ed
混凝土动态弹性模量 dynamic elastic modulus of concrete
In the experiment, mass loss, the relative dynamic elasticity modulus and the strength of concrete after freeze-thaw end are analyzed. The results show that, the freeze proof durability of concrete filled steel tube is better than ordinary concrete.
试验对外包钢管混凝土试件在冻融循环作用下的质量损失、相对动弹性模量、冻融结束后混凝土强度进行了对比分析,试验结果表明,外包钢管混凝土的抗冻耐久性能优于普通混凝土。
参考来源 - 外包钢管混凝土抗冻耐久性试验研究与理论分析·2,447,543篇论文数据,部分数据来源于NoteExpress
内部大孔也可能饱和而引起内部开裂,导致相对动弹性模量下降。
The larger pores in the interior of specimens may be saturated and lead to cracking, which result in the decrease of relative dynamic elasticity modulus.
含水率对纵向基频振动法(FFT)测得的动弹性模量影响不显著。
While it had no significant effect on Resonant Frequency Vibration(FFT analyzer).
混凝土抗冻融300次时,动弹性模量为97%,混凝土具有优良的抗冻融耐久性。
The concrete with this product has excellent anti-frost durability, with a relative dynamic elastic modulus of 97% after 300 cycles of freezing-and-thawing.
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