Overview of Nonlinear Hysteretic Models in Bispec
Different element models can be used to characterize the hysteretic behavior of the system.
There are 10 different elements that are currently available in Bispec:

1. Elastic Linear Model
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2. Bilinear Model with Hardening |

3. Bilinear Model with Bidirectional Interaction
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4. Clough Bilinear Stiffness Degrading Model
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5. Modified Clough Bilinear Stiffness Degrading Model
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6. Bilinear Origin-Oriented Model
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7. Bilinear Peak-Oriented Model
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8. Bilinear Elastic Model |

9. Bilinear Flag Model
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10. Bilinear Slip Model |