结构钢材的韧性随温度降低而下降，其破坏形态也由塑性屈服向脆性断裂转变，构件的承载力也由强度控制变为材料的韧性控制。
The toughness of steel decreases as temperature drops, its breakage transfers from plasticity to brittleness and the loading capacity is controlled by the toughness, not the strength.
拉伸实验结果表明随硬组分甲基丙烯酸甲酯含量的增加，抗拉强度增加，材料由橡胶向脆性塑性转变；
The results of tension tests show that the tensile strength increases and the materials are converted from a rubber to a plastics as the contents of PA increase.
该复合材料韧性降低，使其断裂形态从塑性断裂转变为脆性断裂。
The abrasion mass decreases at first, then increases. The fracture mechanism of the MMC transforms from ductile fracture into brittle fracture.
该复合材料韧性降低，使其断裂形态从塑性断裂转变为脆性断裂。
The abrasion mass decreases at first, then increases. The fracture mechanism of the MMC transforms from ductile fracture into brittle fracture.
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