shabuK's blog

Dear friends,

   I am doing simulation of TOFD. Fortunatly I got some result.but my results are not as i expected .and timing of signal also not exactly matching with my experimental signal. hear i attach a image of what i got and what i expect. I am expecting some answer from this forum.

thank you

in most of sound wave propagation simulation, hanned sine wave is used as input signal why it is like that.is there any other waves which match output from a transducer

my abaqus simulation of time of flight diffraction technique not differentiating diaffracted wave and lateral wave.both gives same amplitude.what to do to gett a better result?.I am doing my work based on "shear wave TOFD by baskaran".any suggestion?

Dear friends,

           I am simulating sound propagation in mild steel.

frequency=5MHz mesh size=0.5mm

time incriment of wave amplitude=1e-9

instead of giving force at a node i have given boundry displacement

U1=5.8e-10

U2=-8e-10

instead of showing sound propagation, my entire specimen(mild steel with 15 mm thickness) deflecting like a wave.I would like to know 1)what is the reason for that deflection?

2)what may be the possible solution?