Delayed fracture in porous media
The fracture of porous media subjected to a constant load is studied. Contrary to homogeneous solids in which fracture usually happens instantaneously at a well-defined breaking strength, the fracture of a porous medium can occur with a delay, allowing us to quantify the average lifetime of the unbr...
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| Veröffentlicht in: | Physical review letters 2005-10, Vol.95 (17), p.175501.1-175501.4, Article 175501 |
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| container_end_page | 175501.4 |
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| container_issue | 17 |
| container_start_page | 175501.1 |
| container_title | Physical review letters |
| container_volume | 95 |
| creator | SHAHIDZADEH-BONN, Noushine VIE, Philippe CHATEAU, Xavier ROUX, Jean-Noël BONN, Daniel |
| description | The fracture of porous media subjected to a constant load is studied. Contrary to homogeneous solids in which fracture usually happens instantaneously at a well-defined breaking strength, the fracture of a porous medium can occur with a delay, allowing us to quantify the average lifetime of the unbroken material. We show that the average fracture probability, a key property for risk analysis in civil engineering, is given by the probability of crack nucleation. The nucleation process can be understood qualitatively by calculating the activation energy for crack nucleation, taking into account the porosity of the medium. |
| doi_str_mv | 10.1103/PhysRevLett.95.175501 |
| format | Article |
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Contrary to homogeneous solids in which fracture usually happens instantaneously at a well-defined breaking strength, the fracture of a porous medium can occur with a delay, allowing us to quantify the average lifetime of the unbroken material. We show that the average fracture probability, a key property for risk analysis in civil engineering, is given by the probability of crack nucleation. 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| source | American Physical Society Journals |
| subjects | Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Fatigue, brittleness, fracture, and cracks Mechanical and acoustical properties of condensed matter Mechanical properties of solids Mechanics Mechanics of materials Physics Solid mechanics |
| title | Delayed fracture in porous media |
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