mika3049
Materials
- Nov 4, 2016
- 17
Hi,
I would like to ask for some advices on Direct Cycling.
First, defining the sinusoidal load. I define it in 3 places: (a) as Cycle Time Period in Step, (b) in Amptitude (Circular frequency and Initial amplitude, A and B), and (c) in Load (Magnitude). Somehow, Lets say, I have a sinusoidal load, starting at zero, duration of each loading cycle 0.5 s, totally 100 cycles, total duration 50sec, Maximal Load (peak) 100 N, lowest load zero. Should I set: Cycle Time Period 0.5, Initial Amplitude 0, A=1, B=0, Circular frequency =2*pi/0.5, Magnitude 100 ? And if the lowest load is 30, I set Initial Amplitude 30?
About output: Can I see the stresses/damage in different cycles? Now, I see in Step/Frame 3 increments (Step Time 1 and 501). Can I see it per Cycle?
And can I estimate stiffness reduction as a function of cycles? Apparently, I need to determine Reaction Force for each cycle – but how to make them to be printed out after each cycle? Can I get like S-N curve from direct cycling simulations – if yes, how?
Leon
I would like to ask for some advices on Direct Cycling.
First, defining the sinusoidal load. I define it in 3 places: (a) as Cycle Time Period in Step, (b) in Amptitude (Circular frequency and Initial amplitude, A and B), and (c) in Load (Magnitude). Somehow, Lets say, I have a sinusoidal load, starting at zero, duration of each loading cycle 0.5 s, totally 100 cycles, total duration 50sec, Maximal Load (peak) 100 N, lowest load zero. Should I set: Cycle Time Period 0.5, Initial Amplitude 0, A=1, B=0, Circular frequency =2*pi/0.5, Magnitude 100 ? And if the lowest load is 30, I set Initial Amplitude 30?
About output: Can I see the stresses/damage in different cycles? Now, I see in Step/Frame 3 increments (Step Time 1 and 501). Can I see it per Cycle?
And can I estimate stiffness reduction as a function of cycles? Apparently, I need to determine Reaction Force for each cycle – but how to make them to be printed out after each cycle? Can I get like S-N curve from direct cycling simulations – if yes, how?
Leon