The phrase "a formation of plastic" is correct and usable in written English.
It can be used to describe a specific shape or structure made from plastic material.
Example: "The artist created a stunning sculpture that was a formation of plastic, showcasing the versatility of the medium."
Alternatives: "a structure of plastic" or "a shape of plastic".
Using basic geometrical relations, the stages can be formulated as intervals of the global tool displacement, U, and similarly for the limits of integration, namely (z A, z B ) or (u A, u B ). Formation of plastic zone: (0
As the state of over-complete collapse is associated with the simultaneous formation of all plastic hinges, it can be used as a roadmap to induce a controlled, sequential formation of plastic hinges without compromising the limit carrying capacity or the minimum weight status of the framework.
Second, a structural failure was defined when formation of plastic hinges leaded to failure mechanism.
The present section proposes a simple method for delaying the formation of plastic hinges near the supports until the rest of the structure tends to become a mechanism.
The likelihood of over-complete collapse, suggests that the sequences of formations of the plastic hinges may be controlled in such a way as to prevent the formation of plastic hinges in the vertical members until the first sets of hinges form in the desired locations of the horizontal elements.
The first type of model involves uniform collapse of the system through a kinematically admissible mechanism resulting from the formation of plastic hinges.
Especially in seismic design the utilization of material reserves and the formation of plastic hinges play an important role.
The end sections of the members of the module can be treated in such a way as to prevent or force the formation of plastic hinges at those locations, e.g., using reduced beam sections, added flange plates, haunches, etc.
The buckling-restraining casing effectively prevented buckling of slender vertical bars under a substantially high axial load level, resulting in a more ductile mode of failure with the evident formation of plastic hinge at the base of the column.
A portal frame test structure is designed and built to simulate the formation of plastic hinges without actually receiving any damage.
