strength retention

Concrete behavior under the biaxial state of stress is represented by a nonlinear constitutive relationship, which incorporates tensile cracking at a limit stress, tension stiffening and shear retention effects for cracked concrete, and the strain-softening phenomenon beyond the maximum compressive strength.

混凝土的非线性本构关系，则考虑受拉开裂、开裂后的拉伸加强效应和剪切折减系数以及屈服后的应变软化现象。

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After finishing, the fabric flatness attained rate 3.5 or more, retention of tensile strength at break not less than 55% and residual formaldehyde on fabrics less than 75 mg/ kg.

整理后的织物平整度可达3.5级或以上，断裂拉伸强力保留率不低于55%，织物残留甲醛量

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The optimized proportion was presented according to the compress strength and water retention rate.

以混凝土强度和保水率为评价指标,确定出了养护剂的最佳配合比.

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The flexural strength retention at 235 ℃ is 88.5%;

高温弯曲强度保留率为88.5%。

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The results indicate that the retention rates of tensile-strength mainly correspond to energy density, while the ones of module are related with ablative extent of carbon-fiber nearly.

激光能量密度是影响复合材料辐照后拉伸强度保留率的最主要因素，而影响复合材料辐照后拉伸模量保留率的最主要因素为连续碳纤维增强相的损伤程度。

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The finished fabric features dry and wet recovery angle 290 degree and 249 degree, warp and weft strength retention 83.1% and 80.8% respectively.

整理后织物的干湿折皱回复角分别为296°和249°，强力保留率经向为83.1%，纬向为80.8%。

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CMS has significant effect on strength and retention when it is used in the pulp.

浆内添加时有较好的增强和助留效果.

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The experiment shows that the retention of extension strength, bending strength and their modulus are above 60% below the 250 ℃, which has super high loading capacity.

实验表明，在250℃下其拉伸和弯曲强度及模量的保留率均在60%以上，仍具有极高的承载能力。

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Adhesive power, peeling strength, chromatic aberration, impact strength retention rate and other indicators can be more comprehensive characterization of color profiles of weathering resistance.

附着力、剥离强度、色差、冲击强度保留率等指标能比较全面的表征彩色型材的耐候性能。

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The Effect of Different Fabrication Methods and Luting Cements on Post Retention Comparative study of bond strength between zirconia ceramics and 4 luting cements

不同制作方法及粘接材料对桩固位力影响的实验研究4种黏结材料与氧化锆陶瓷黏结剪切强度的比较

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