Analyse des spr�den Zugbruches von Gl�sern mittels Ultraschall

Kerkhof, F.

doi:10.1007/bf00628983

Cited by 53 publications

(8 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…And so research was carded out on such topics as the characteristics of high speed light sources (Reichenbach 1951), the construction of a Mach-Zehnder interferometer (Hannes 1952) and breaking and wave processes in glass and other transparent media (Kerkhof 1953(Kerkhof , 1955Quenett 1954;Reichenbach 1954;Henschen 1959).…”

Section: The First Shock Wave Experiments At the Emimentioning

confidence: 99%

In the footsteps of Ernst Mach ? A historical review of shock wave research at the Ernst-Mach-Institut

Reichenbach

1992

Shock Waves

View full text Add to dashboard Cite

Abstract. The aim of this paper is to recall some of the historical work on shock waves and to give a brief survey of research activities at the Ernst-Mach-Institut (EMI). Some fundamental results of Ernst Mach (1838Mach ( -1916 are demonstrated and historical remarks are given to the shock tube as an important tool in shock wave research. The activity at EMI in this field was initiated by Prof. H. Schardin (1902Schardin ( -1965 in 1955 and has since been continued. Propagation processes of shock and blast waves, blast loading phenomena, shock attenuation, shock reflection at various surfaces, development of new types of blast simulators, electromagnetically driven T-tubes, precursor and decursor phenomena are only a few examples of research topics at EMI that will be discussed.

show abstract

Section: The First Shock Wave Experiments At the Emimentioning

confidence: 99%

In the footsteps of Ernst Mach ? A historical review of shock wave research at the Ernst-Mach-Institut

Reichenbach

1992

Shock Waves

View full text Add to dashboard Cite

show abstract

“…These include direct real-time methods (multiple spark high-speed photography [11], pulsed laser high-speed photography [12] and holography [13,14], laser shadowing [15], and Rayleigh wave photography [15][16][17], direct post-mortem techniques (Wallner line fractography [ 18,19] and active ultrasonic fractography [20][21][22], and indirect real-time methods (potential drop [23,24], conductive mesh [25][26][27], and continuous conductive coating [4,28] techniques). These include direct real-time methods (multiple spark high-speed photography [11], pulsed laser high-speed photography [12] and holography [13,14], laser shadowing [15], and Rayleigh wave photography [15][16][17], direct post-mortem techniques (Wallner line fractography [ 18,19] and active ultrasonic fractography [20][21][22], and indirect real-time methods (potential drop [23,24], conductive mesh [25][26][27], and continuous conductive coating [4,28] techniques).…”

Section: Experimental Backgroundmentioning

confidence: 99%

Study of crack-tip motion in dynamic fracture by microscopic time-resolved holography

Steckenrider

Wagner

1995

Int J Fract

View full text Add to dashboard Cite

A novel laser system has been designed and developed for the time-resolved holographic analysis of dynamic crack propagation in thin (150 #m) glass plates. The system provides a frame-to-frame resolution of from 28.3 to 161.6 ns, with a spatial resolution of better than 25 #m. Holographic analyses were conducted using both diffuse and direct laser illumination, demonstrating a broad range of applicability for this method. A series of specimens with pre-crack lengths of from 3.5 to 10.5 mm were tested using various pre-load levels and crack-growth-initiating explosive sizes. All specimens exhibited similar dynamic fracture behavior, particularly those outside of the region of shock of the initiating explosive (those of the longer pre-crack set). A best-fit to the theoretical prediction for mode I crack growth revealed a good match to the case for a specimen 'overloaded' by 64 percent. However, no variation with applied load was evident, indicating that an immediate acceleration to a velocity of ~ 1200 m/s (near the empirically determined terminal velocity) was the more plausible fit. Since the terminal velocity was approximately the same for all specimens, this investigation also demonstrated that the terminal velocity is independent of crack-tip stresses, even for the most extreme explosive pulses.

show abstract

“…The method of ultrasonic fractography after Kerkhof [1,2] has been used to measure crack velocities in glass [3] in the range from 5 to 1500 m/s. The ultrasonic signal used for the purpose was shown by Kuppers [4] to have no significant effect on the crack velocity itself, provided that the experimental conditions are proper.…”

Section: Introductionmentioning

confidence: 99%