| 摘要 |
FIELD: test equipment. ^ SUBSTANCE: Scale model made in form of rectangular covering is subject to loading. Model is connected partially or continuously with longitudinal and lateral power framing. Stress generated in model is defined from preset ratio of transitions from stress measured in model to natural stress. Scale of thickness of framing and scale of thickness of power framing are assumed to be equal t get identical stressed-deformed state of nature and model. Boundary conditions are also equal; general scale of geometric similarity is taken randomly and relative modules of longitudinal elasticity are taken to be equal. Model is subject to loading by means of extending or pressing forces oriented along edges power framing or along edges of covering to keep similarity of force distribution. ^ EFFECT: improved truth of test results. ^ 2 cl, 7 dwg |
