SKY Mining and Construction Machinery Co., Ltd. is a hi-tech, engineering group. We are specialized in the research, development, and production of industrial crushing, powder grinding, mineral processing equipments and other related devices. Our products have been sold to 120 countries and areas of Southeast Asia, East Europe, South America, the Middle East and Africa etc, and more foreign markets will be promoted in future.
We hold "Pursuing the Technology and Quality" as our management concept all the time. Relying on absorbing world leading crushing and powder processing technology, advanced management and quality control system, as well as our full efforts, SKY has earned high reputation among our customers.
The relationship between the stress and strain that a particular material displays is known as , Low carbon steel generally exhibits a very linear stress–strain relationship up to a well defined yield point (Fig2) The linear portion of the curve is.
A typical relationship between stress and strain for normal strength concrete is , load, the curve becomes non-linear, with large strains being registered for small , the strain hardening behaviour commonly exhibited by metals like steel)
These empirical relationships have been developed to generate the line defining the , For ductile steels, the Morrow equation is less sensitive to mean stress , The following figure is a fatigue diagram showing various criteria of failure