Drop test on double...
 
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Drop test on double shear box to examine shear behaviour of rock bolt

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Topic starter
(@samkhp88)
Barista
Joined: 4 years ago

Hi there, 

I have been trying to plot Impact vs time for my model, but for some reasons I haven't been able to obtain a correct result matched with experimental results. The Mat i used for this model is 

MAT_159 for concrete and grout,

MAT_024 for 18 mm rock bolt, 

MAT_003 for external steel confinement wrapped around the concrete, and 

MAT_020 and 001 for drop hammer rig. 

Contact:

AUTOMATI_SURFACE_TO_SURFACE,

Problem:

Impactor doesn't generate a compressive behaviour even though the system travel vertically, the result from Impact vs time shows some bounces. The result should be a peak load once the impactor hits the system, showing inertia force and then load bearing of the system which is in a sinusoidal pattern with low oscillation and end up failure.  

 Impact load 1







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