Modern concepts of the fracture of adhesive joints made with polymers are critically analyzed. The results of experiments carried out by new research techniques are used to show that fracture of joints of this kind may be cohesive, adhesive (interfacial), or compound in character....
At present, there are two types of numerical calculation methods that can be used in the study of rock fracture and rock strata movement:() A. Numerical calculation method based on continuum mechanics B. Numerical calculation method based on semicontinuous medium mechanics C. Methods for ...
Wavelet analysis is used to determine new relevant descriptors in order to improve the characterization and the identification of the fracture type: plastic deformation and crack initiation/growth. A correlation between the features of the continuous wavelet transform of AE signal (frequency peak, ...
Breakage mechanics is a new theory different from fracture mechanics and damage mechanics. In this paper the methodology of examination for geomaterial in three levels,macro-level,meso-level and micro-level,is introduced in detail,and the geomaterials are divided into four structural types,fragmentation...
interface separation of larger carbide,separation between spherical carbide and ferrite matrix and cracking of grain boundary in the experimental condition.The distance Xf between cleavage crack origin and plastic crack tip had a decisive effect on cleavage fracture and increased with temperature,and the...
The distributions of the collagen type ratio were similar for both ulcerated and non-ulcerated plaque caps but different from that of the adjacent intima. The proportions of different collagen types were not related to fracture stress and are thus unlikely to affect the potential to ulcerate. The...
The possibility of construction of efficient databases in mechanics is illustrated by using the computer algebra system MATHEMATICA. In the same system, it is also possible to use special types of objects and functions like those encountered in applied mechanics. The area of fracture mechanics and,...
At present, there are two types of numerical calculation methods that can be used in the study of rock fracture and rock strata movement:()A.Numerical calculation method based on continuum mechanicsB.Numerical calculation method based on semicontinuou
An arm cast typically stays in place for 4-6 weeks. If a fracture is displaced or not healing well, a cast might need to stay on for a longer duration and up to 8 weeks. What is a short arm cast? A short arm cast is made of hard material wrapped around the lower arm to protect...
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