A comprehensive mechanical characterization of a polymer named Hysol 4183 subjected to either constant nominal strain rate loading or creep was carried out. The constant nominal strain rate tests included uniaxial loading in compression and tension, and (confined) triaxial loading by using the sleeve method. The creep tests included compressive uniaxial creep and creep-recovery loading at different stress levels and triaxial (confined) creep using the sleeve method. All the experiments were conducted at constant room temperature. A strong dependency of the polymer’s mechanical properties upon the loading rate was observed. Likewise, differences were observed in the tension and compression regime. The confining pressure improves the mechanical resistance of the polymer in terms of strength, failure strain, and elastic modulus relative to uniaxial constant strain rate loading. Curve fitting is applied to the results to model both the constant strain rate, including the influence of the confining pressure, and uniaxial creep loading tests. The creep equations incorporate the elastic, viscoelastic, and viscoplastic strain components. The results predicted by the models are satisfactorily correlated with the measured experimental results.

对承受恒定标称应变速率载荷或蠕变的名为Hysol 4183的聚合物进行了全面的机械表征。恒定的标称应变率测试包括压缩和拉伸中的单轴载荷，以及使用套筒法的（有限）三轴载荷。蠕变测试包括在不同应力水平下的压缩单轴蠕变和蠕变回复载荷，以及采用套管法的三轴（受限）蠕变。所有实验均在恒定的室温下进行。观察到聚合物的机械性能对加载速率的强烈依赖性。同样，在拉伸和压缩方式中观察到差异。围压可以提高聚合物的机械强度，包括强度，破坏应变，相对于单轴恒定应变率载荷的弹性模量。将曲线拟合应用于结果以对恒定应变率（包括围压的影响）和单轴蠕变载荷测试进行建模。蠕变方程包含弹性，粘弹性和粘塑性应变分量。模型预测的结果与实测的实验结果令人满意地相关。