Mixed Mode Fracture

Finite Element Simulation of Sandwich Panels of Plasterboard and Rock Wool under Mixed Mode Fracture

This paper presents the results of research on mixed mode fracture of sandwich panels of plasterboard and rock wool. The experimental data of the performed tests are supplied. The specimens were made from commercial panels. Asymmetrical three-point bending tests were performed on notched specimens. Three sizes of geometrically similar specimens were tested for studying the

February 14, 2026

Experimental tests and numerical modeling to indentify the asymptotic shear-compression mode IIa of concrete fracture

In contrast to tensile fracture, shear compression fracture of concrete has not been treated in depth in the literature, in spite of its practical significance in many situations such as confined pull-out, impact, etc. In this paper, we describe the experimental work carried out at ETSECCPB- UPC in order to elucidate the existence of such

February 14, 2026

Mixedmodefractureofdouble-edgenotchedspecimensofconcrete

The double-edge notched test, suggested by Reinhardt, to explore mixed mode fracture behav- iour is analysed. This paper presents detailed experimental data using this novel testing procedure. The tests were performed for three homotetic specimen sizes. Experimental crack trajectories are presented together with the corresponding load-displacement curves. Also, a numerical analysis of the tests was

February 14, 2026

A fracture failure criterion for concrete-concrete interface under mixed mode loading condition

Variousimportantconcretestructuresaresusceptibletoimperfections,suchasthepresence of an interface. In some cases, the formation of an interface is an inevitable flaw, such as in the case of repair, dams and pre-cast concrete structures. These flaws can act as a weak link and could be responsible for the failure of the structures. One of the most widely used nondestructive techniques to

February 14, 2026

On FPZ for mixed mode I-II fracture in concrete after sustained loading using DIC technique

This paper investigates the fracture process zone (FPZ) of mixed mode I-II fracture in concrete after sustained loading, employing the digital image correlation (DIC) technique. Concrete specimens were subjected to sustained three-point bending (TPB) and four-point shearing (FPS) loading for 90 days, with the sustained load level at 80% of the initial cracking load. Afterward,

February 14, 2026

Mixed mode crack propagation in reinforced concrete beams – effects of size and reinforcement ratios

The mixed mode crack growth in reinforced concrete is studied for effects of size and reinforcement ratios. The beam specimens were reinforced with a single longitudinal bar and no shear reinforcement was provided. In the experimental work, three reinforcing bar diameters i.e. 8mm,10mmand12mmwereusedforthesmall,mediumandlargebeamspecimensrespectively. The notch was provided at the quarter span, as it is the

February 14, 2026

Axial mode i cracking in core regions of compressed reinforced concrete columns subjected to fire loading

Reinforced concrete columns must withstand extreme scenarios like fires. Understanding their structural behavior during such events is of great interest to structural engineers. The present study is focused on a cylindrical reinforced concrete column subjected to a moderate fire. The anal- ysis combines a Fourier series solution for radial heat ingress into the column and

February 14, 2026

Fracture toughness of plain concrete under mode ii loading

Mode II fracture behaviour plain concrete is rarely attempted due to lack of standard testing procedures. The direct shear test method is adopted to determine Mode-II fracture parameters. This paper discusses experimental investigations carried out for strength and fracture toughness of Normal, and High-strength concretes under Mode II loading. An ideal Mode II failure has

February 14, 2026

Testing method for interface mode II fracture of plain concrete and fiber-reinforced cementitious composite

The performance of a bi-material interface is one of the major concerns in the repair or strengthening of concrete structural elements. In this study, a novel testing method for interface shear fractures of plain concrete and fiber-reinforced cementitious composites is proposed to avoid tensile failure during the test. Double-edge notched and unnotched specimens are utilized.

February 14, 2026

Energy Equivalence Approach for Analysis of Reinforced Concrete Beams under Mixed Mode Loading

Concrete being a composite, heterogeneous material, an accurate prediction of its be- haviour under combined bending and shear is an open problem. In this work, a method is proposed to address this problem by bringing an equivalence between the normal stress (σ) and shear stress (τ). Finite element modelling is used as a tool for

February 14, 2026

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