You asked a question regarding the rapture, wondering if I accepted this, because you don’t remember ever reading any LDS doctrine on it.
Response
In answer to your question, there is no specific LDS doctrine under the title "rapture." Our belief in Christ’s second and glorious coming is that those of us living on the earth at the time of His coming who believe in Christ and have lived honorable, righteous lives will be caught up to meet Him as He descends to take His place as King of Kings and Lord of Lords. That will be a glorious day when we witness that every knee shall bow and every tongue confess that Jesus is the Christ? I hope this is helpful to you.