Matyukhin Dmitrij Vladimirovich,Palchikov Denis Sergeevich,Sinitsyn Anton Vadimovich
申请号：
RU20180102096
公开号：
RU2672035(C1)
申请日:
2018.01.19
申请国别(地区):
俄罗斯
年份:
2018
代理人:
摘要：
FIELD: test technology.SUBSTANCE: invention relates to the field of tests for crack resistance, and in particular to methods for testing the crack resistance of samples of polymer composite materials. Place on a contrasting background a sample of a material with a crack previously made at its end, apply a tensile force to said end of a sample of material, in the process of applying a tensile force, illuminate the sample, measure the applied force and form a time sequence of digital images of the sample in reflected light, on each digital image of the sample, determine the position of the crack tip and calculate its length, and based on the calculated values of the crack length and the measured value of the applied force, determine the characteristic of the crack resistance of the sample, moreover, the position of the crack tip is determined by measuring the intensity of the pixels along the crack line in each digital image of the sample, to calculate the crack length on one of the digital images, a control se
