Academic Journal
Formulation for the matrix analysis of frame structures including fracture mechanics concepts: Applications in tunnel linings and airplane fuselage panels.
| Title: | Formulation for the matrix analysis of frame structures including fracture mechanics concepts: Applications in tunnel linings and airplane fuselage panels. |
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| Authors: | Amorim, David Leonardo Nascimento de Figueiredo, Proença, Sergio Persival Baroncini, Flórez-López, Julio |
| Source: | International Journal of Damage Mechanics; Jan2026, Vol. 35 Issue 1, p46-71, 26p |
| Subject Terms: | Fracture mechanics, Crack propagation, Multiple scale method, Damage models, Structural frames, Structural analysis (Engineering), Finite element method, Mechanical stress analysis |
| Abstract: | This paper proposes a procedure for analyzing crack propagation in complex structures based on lumped damage mechanics. This theory combines the concept of a plastic hinge with the procedures of damage and fracture mechanics. Models of damage for monotonic loading and high-cycle fatigue are proposed. The paper also describes the numerical implementation of the models in conventional finite-element programs. The models are validated by comparison with experimental results and classic fracture mechanics analyses. It is shown that the model can be used in multi-scale schemes for the structural assessment of structures in civil, offshore, and aeronautical engineering. Therefore, the proposed model might be useful as a macro-modeling step in multi-scale analysis, as well as a tool for preliminary analysis of structures under fatigue loads. [ABSTRACT FROM AUTHOR] |
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| Database: | Complementary Index |
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