AbstractA well‐known model of stress–strain behavior in continuous‐fiber ceramic composites was expanded, corrected, and coded in a popular programming language. Four versions of the code with differing output plot formats are included. They can be pasted into a program file and used without editing. One of them allows observing the changes in the stress–strain curve while varying nearly any of the input properties. The ability to observe or quickly plot and compare curves using different parameters can aid in understanding the roles of constituent and interface properties in composite behavior. It can also aid in inferring unmeasurable properties in actual composites. Comparisons of model output to experiment are presented and discussed.