H. P. Rossmanith's research while affiliated with University of Vienna and other places

... Accordingly, some scholars have studied the propagation of three-dimensional cracks under blast loading. Daehnke et al. [32][33] used a plexiglass specimen to study the characteristics of blast-induced crack propagation in three dimensions and found that the detonation gas played a major role in the crack propagation during rock blasting. Rossmanith et al. [34] and Jeong et al. [35] used high-speed cameras to observe the propagation of three-dimensional cracks under blast loading and concluded that the propagation of ear-shaped radial cracks can be divided into three types, as shown in Fig. 7. ...

... According to the sliding crack model theory and rock fracture mechanics [44,45], effective shear stress on the crack surface is described as follows: ...

... In the SHPB and static compression tests, the stresses applied to the sample were 102.8 MPa (approximately 90% of the peak stress) and 107.3 MPa, respectively, when the wing cracks and secondary cracks initiated at the flaw tips or around the flaw edges. As the SIF is related to the stress around/ahead of the flaw/crack tips (Benz and Sander 2014;Rossmanith 1983), it is therefore inferred that the higher loading stress under static compression may result in greater SIFs around the flaw/crack tips than those resulting from the SHPB tests. Moreover, according to Charles' law, V c is dependent on SIF, i.e., V c = a·b n , in which a is constant, b is the SIF, and n is the stress corrosion index whose range is 20-60 for geomaterials (Atkinson and Meredith 1987a, b;Main et al. 1989). ...

... In our investigation, the wave number (k) was assumed to be complex form and can be written as k = k 1 + ik 2 = k 1 (1 + id) where k 1 and k 2 are real and d = k 1 =k 2 is the attenuation coefficient of SH-wave. Throughout the investigation, the numerical data for plotting various graphs has been taken from the articles (Gubbins, 1990;Payton, 2012;Wang and Zhang, 1998). ...

... A similar method to estimate the efficiency of stress-wave transmission has been proposed by Lundberg 10-12 and by Pang 14 . Rossmanith et al. 17 have proposed a finite difference method to solve this problem. ...

... The closer the fault to the ultimate state is, the bigger the residual displacement is. If the shear stress is close to the ultimate strength, any (even a very weak) impact can trigger a slip event (Uenishi et al., 1999). In the case of repeated impacts, cumulating residual displacements can lead to a slip instability even though the static ultimate strength is not reached (Kocharyan et al., 2005). ...

... Thermal cracking in concrete occurs in the early hydration stage due to uneven distribution of stresses resulting from hydration heat and boundary constraints, endangering structural durability and even stability. Thermal cracks may initiate in the outlet, gallery, heel [20] , surface, and interior of dam concrete blocks [1,21] , tunnel spillway [22] , and overtopping of placed blocks from seasonal low-temperature flooding [23] . Temperature control of mass concrete in the construction period (e.g., concrete placement and curing) has received extensive attention in related academics and industries. ...

... From Table 1 it can be seen that parameters such as F, R, 2a and the contact patch size are close to the real values [19]. The absolute reduction in diameter was 0.6 mm for damage band 1 and 0.2 mm for damage band 3 (for the shaft as well as for the ring). ...

... overall macro-and microdamage) from either single or several nearby blastholes detonated either simultaneously or sequentially. Rossmanith et al. (1997), Rossmanith (2003) and Rossmanith and Kouzniak (2004) described the theoretical background and provided insight into the way in which stress waves from detonating charges can propagate, interact and finally contribute to the final extent of rock mass damage, which in this context is defined as the change of the inherent or in situ characteristics of the intact rock or rock mass which changes its engineering behaviour or response. In underground mining applications, this problem is made more complex by the presence of stresses (magnitude and orientation) as well as the anisotropic nature of properties of the confining rock mass. ...

... Nevertheless, considerable progress has been made ßç elastodynamic contact problems duÞçg the last two decades (Bedding and Willis [5,6], Willis [7,8], Brock [9][10][11][12][13][14] and Cherepanov [15]). It is worthwhile to mention also some relevant experimentál work done recently by Rossmanith [16,17] via high-speed camera techniques, dynamic photoelasticity and caustics. This work, along with Refs. ...