Stage I compression-extension injury of the cervical spine, as described by Allen et al, is not always a stable injury. The combined unilateral failure of the posterior structures under compression together with failure of the anterior structures under tension will lead to rotational instability around the intact lateral mass. We report on 10 consecutive patients who presented with this type of...

A mix-mode cohesive fracture model considering tension, compression and shear material behaviour is presented, which has wide applications to geotechnical problems. The model considers both elastic and inelastic displacements. Inelastic displacement comprises fracture and plastic displacements. The norm of inelastic displacement is used to control the fracture behaviour. Meantime, a failure fun...

One of the reasons that cause collapse buildings is deficient short columns, which need to be retrofitted prevent building in a potential earthquake. External reinforced concrete (RC), steel plates, and fiber-reinforced polymer (FRP) jacketing are standard retrofitting methods retrofit columns increase their shear capacity. However, compression failure, effectiveness FRP quite limited due prema...

Abstract Isolated right heart failure (RHF) can be caused by ventricular (RV) compression, mainly described in severe cases of pectus excavatum. Mediastinal masses determine an extrinsic compression the RV. A 62–year–old retired agricultural inspector from Sicily presented our clinic with worsening signs RHF. His medical history consisted echinococcosis familiarity, surgically treated congenita...

We quantify the spatial distribution of fracture networks throughout six in situ X-ray tomography triaxial compression experiments on crystalline rocks at confining stresses 5–35 MPa order to how development controls final macroscopic failure rock, a process analogous those that control geohazards such as earthquakes and landslides. Tracking proportion cumulative volume fractures with volumes &...